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media: camss: vfe: Different format support on source pad 

Rework the format selection on the source pad. Make the format
on the source pad selectable amongst a list of formats. This
list can be different for each sink pad format.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Todor Tomov 2018-07-25 12:38:36 -04:00 committed by Mauro Carvalho Chehab
parent cba3819d1e
commit 07eeb342a1
1 changed files with 136 additions and 38 deletions
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174
drivers/media/platform/qcom/camss/camss-vfe.c
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@ -124,6 +124,131 @@ static u8 vfe_get_bpp(const struct vfe_format *formats,
return formats[0].bpp;
}
static u32 vfe_find_code(u32 *code, unsigned int n_code,
unsigned int index, u32 req_code)
{
int i;
if (!req_code && (index >= n_code))
return 0;
for (i = 0; i < n_code; i++)
if (req_code) {
if (req_code == code[i])
return req_code;
} else {
if (i == index)
return code[i];
}
return code[0];
}
static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
unsigned int index, u32 src_req_code)
{
struct vfe_device *vfe = to_vfe(line);
if (vfe->camss->version == CAMSS_8x16)
switch (sink_code) {
case MEDIA_BUS_FMT_YUYV8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_YUYV8_2X8,
MEDIA_BUS_FMT_YUYV8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
case MEDIA_BUS_FMT_YVYU8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_YVYU8_2X8,
MEDIA_BUS_FMT_YVYU8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
case MEDIA_BUS_FMT_UYVY8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_UYVY8_2X8,
MEDIA_BUS_FMT_UYVY8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
case MEDIA_BUS_FMT_VYUY8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_VYUY8_2X8,
MEDIA_BUS_FMT_VYUY8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
default:
if (index > 0)
return 0;
return sink_code;
}
else if (vfe->camss->version == CAMSS_8x96)
switch (sink_code) {
case MEDIA_BUS_FMT_YUYV8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_YUYV8_2X8,
MEDIA_BUS_FMT_YUYV8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
case MEDIA_BUS_FMT_YVYU8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_YVYU8_2X8,
MEDIA_BUS_FMT_YVYU8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
case MEDIA_BUS_FMT_UYVY8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_UYVY8_2X8,
MEDIA_BUS_FMT_UYVY8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
case MEDIA_BUS_FMT_VYUY8_2X8:
{
u32 src_code[] = {
MEDIA_BUS_FMT_VYUY8_2X8,
MEDIA_BUS_FMT_VYUY8_1_5X8,
};
return vfe_find_code(src_code, ARRAY_SIZE(src_code),
index, src_req_code);
}
default:
if (index > 0)
return 0;
return sink_code;
}
else
return 0;
}
/*
* vfe_reset - Trigger reset on VFE module and wait to complete
* @vfe: VFE device
@ -1388,11 +1513,11 @@ static void vfe_try_format(struct vfe_line *line,
case MSM_VFE_PAD_SRC:
/* Set and return a format same as sink pad */
code = fmt->code;
*fmt = *__vfe_get_format(line, cfg, MSM_VFE_PAD_SINK,
which);
*fmt = *__vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, which);
fmt->code = vfe_src_pad_code(line, fmt->code, 0, code);
if (line->id == VFE_LINE_PIX) {
struct v4l2_rect *rect;
@ -1401,34 +1526,6 @@ static void vfe_try_format(struct vfe_line *line,
fmt->width = rect->width;
fmt->height = rect->height;
switch (fmt->code) {
case MEDIA_BUS_FMT_YUYV8_2X8:
if (code == MEDIA_BUS_FMT_YUYV8_1_5X8)
fmt->code = MEDIA_BUS_FMT_YUYV8_1_5X8;
else
fmt->code = MEDIA_BUS_FMT_YUYV8_2X8;
break;
case MEDIA_BUS_FMT_YVYU8_2X8:
if (code == MEDIA_BUS_FMT_YVYU8_1_5X8)
fmt->code = MEDIA_BUS_FMT_YVYU8_1_5X8;
else
fmt->code = MEDIA_BUS_FMT_YVYU8_2X8;
break;
case MEDIA_BUS_FMT_UYVY8_2X8:
default:
if (code == MEDIA_BUS_FMT_UYVY8_1_5X8)
fmt->code = MEDIA_BUS_FMT_UYVY8_1_5X8;
else
fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
break;
case MEDIA_BUS_FMT_VYUY8_2X8:
if (code == MEDIA_BUS_FMT_VYUY8_1_5X8)
fmt->code = MEDIA_BUS_FMT_VYUY8_1_5X8;
else
fmt->code = MEDIA_BUS_FMT_VYUY8_2X8;
break;
}
}
break;
@ -1532,7 +1629,6 @@ static int vfe_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_mbus_code_enum *code)
{
struct vfe_line *line = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
if (code->pad == MSM_VFE_PAD_SINK) {
if (code->index >= line->nformats)
@ -1540,13 +1636,15 @@ static int vfe_enum_mbus_code(struct v4l2_subdev *sd,
code->code = line->formats[code->index].code;
} else {
if (code->index > 0)
struct v4l2_mbus_framefmt *sink_fmt;
sink_fmt = __vfe_get_format(line, cfg, MSM_VFE_PAD_SINK,
code->which);
code->code = vfe_src_pad_code(line, sink_fmt->code,
code->index, 0);
if (!code->code)
return -EINVAL;
format = __vfe_get_format(line, cfg, MSM_VFE_PAD_SINK,
code->which);
code->code = format->code;
}
return 0;